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melomori [17]
3 years ago
8

Which of the following elements is an alkali metal?

Physics
1 answer:
Scrat [10]3 years ago
6 0
It is b. sodium because it is in group 1

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Consider a traveling wave described by the formula
Harrizon [31]

Answer:

The wave is traveling in the +x direction.

Explanation:

The equation of a wave is given by the formula as :

y(x,t)=A\ sin(kx-\omega t)

Here,

A is the amplitude of wave

(kx-\omega t) is the phase of wave

\omega is the angular frequency of the wave

We need to find the correct statement out of given options. The given equation can be rewritten as :

y(x,t)=A\ sin(\omega t-kx)

Here, the propagation constant is negative. So, the wave is moving in +x direction. Hence, the correct option is (a).

4 0
4 years ago
What factors determine the magnitude of the electric force between two particles ?
sattari [20]

Answer:

Force between two particles depends on the magnitude of charge on the particles and distance between them

Explanation:

We know that

According to coulomb's law electric force between two Particles is given by

F=\frac{1}{4\pi \epsilon _0}\frac{Q_1Q_2}{R^2}=\frac{KQ_1Q_2}{R^2}, here K is constant Q_1\ and\ Q_2\ charge\ on\ the\ particles

R is the distance between the charge particles

So force between two particles depends on the magnitude of charge on the particles and distance between them

6 0
3 years ago
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The curved path traveled by a thrown baseball is known as what?
musickatia [10]

Projectile motion.


hope this helps!

-Payshence

6 0
4 years ago
What influence do culture and customs have on beliefs about mental disorders? Customs really don't determine what is considered
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Answer:

The culture of the patient, also known as the consumer of mental health services, influences many aspects of mental health, mental illness, and patterns of health care utilization. One important cautionary note, however, is that general statements about cultural characteristics of a given group may invite stereotyping of individuals based on their appearance or affiliation. Because there is usually more diversity within a population than there is between populations (e.g., in terms of level of acculturation, age, income, health status, and social class), information in the following sections should not be treated as stereotypes to be broadly applied to any individual member of a racial, ethnic, or cultural group.

Explanation:

4 0
3 years ago
A gas is confined in a cylinder with a piston. What happens when work is done on the gas.
goblinko [34]
It combusts in to a vapor

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3 years ago
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